Water jet



' July 2, 1929. cARTER 1,719,045

WATER JET Filed 1927 mil f I fill NT T. Q. CHRIT sr-Arss WATER JET.

Application filed August 17,1927. SerialNo. 213,557

My invention is a water jet of a selfcleansing type.

In water jets or devices for allowing flow-' ing of a small amount ofwater in amore or less steady stream, it hasbeen found that either thejet or some part of the device con nected to the jet becomes cloggedwith sediment or the like or with marine growths which obstruct andprevent the proper functioningof the jet. This is especially true inconnection with sewer flushers in which usually the water feed pipehas'a valve to regulate the flow of water, in accordance withthefrequency with which thesewer is to be flushed, and some of which havean outlet jet, or the like. In this instance it has been found that theoutlet of the water becomes clogged with anaccumulation of difierentmarine-growths or by sediment, thuspreventing the-proper functioning ofthe jet and of. the sewer flushing mechanism, or-

other mechanism with which thejet is associated.

An object of my invention therefore, is to produce a water jet which, onaccount of having a moving elementtherein subjected to water pressure,keeps the water jet clear of marine growths, sediments or otherobstructions, and hence lated flow.

In constructing my invention, I attach the water jet to the infeedingwater pipe which may also have a regulating valve in the flushingchamber orat some other accessible place. The water jet comprises ahollow structure having a valve seat with a central bore in the seat toallow forward passage of water,

gives a properly reguand above the valve seat there is an agitationchamber in'wliich is located a'ball, this ball resting on the seat.There is a lateral orifice from this chamber which has a small portpreferably on theinside, and this isen larged outwardly, giving a coneshaped ori fice with thelarge end outwardly. The ball is preferablyinserted in the chamber by means of having a removable plug at the top.:In the actionof the water jet, the pressure of the water flowingthrough the bore at the valve seat agitates the ball and keeps a more orless continuous movementjof theball in the agitation chamber, therebypreventing accumulation of dirt, sediment or marine growths. I

My invention is illustrated in the accompanying drawings, in which:

Figure l is a vertical sectional view through an automatic sewerflusher, showing my water jet secured to the intake pipe.

tFigure 2 is a side elevation of the water e Figure 3 is a verticalsection through the water et.

In the particular type of sewer flusher illustrating the use of my waterjet, a pit 11 is formed by the side walls 12 and the base 13, with afloor 14 elevated above the base onthe 1,219,045 PATENT OFFICE.

TnomAsA. CARTER, or os ANGELES, CALIFORNIA.

frame 15. This leaves a chamber 16 below the floor in which a sewer 17may discharge and empty by the pipes 17 and 18. The'chamher-19 above thefloor is the fiushingchamber and designed to becomeifilled. with waterup to the desired level. trates a hollow stand20through which operatesan actuating rod 21 which is connected to the trap 22 pivoted on theframe 23. This trap becomes filled with water by its overflowing thestand and overcoming the weight of the valve bell 24 which is suspendedby a bell operating link 25 connected to the balancing lever 26 which ispivoted on an arm27 connected to the stand, this arm also beingconnected to the operating rod 21. The above features are typical of theold construction.

The water infeeding pipe for flushing 28 extends through the walls 12and may have a hand controlled valve 29 thereon. This, valve as shown intheflushing chamber, it is to be understood, may be placed .in anysuitable position to control the flow of water. An elbow 30 isindicatedas secured to the valve and is. turned upwardly, and to this isattached my water jet which is designated by the numeral 31. V r

This water jet comprises a tubular body32 screw threaded externallyat-the outside on the lower-end 33, and having internal threads 34 atthetop for screwing a plug 35 therein. The tubular body has a partitionstructure 36 which is preferably coned inwardly as indicated at'37', andalso having an inclined upper surface 38. There is a bore 39 through Theconstruction illusthis partition and: the upper surface adjacent thebore may be regarded as a valve seat 40 on which a ball 41 formsaclosure.

-The chamber in which the ball is located may be designated 'as anagitation chamber 42; An orifices?) is forined by'a port 44 of smallbore,"and' this bore connecting with a conical outlet 45, forms anoutlet from the agitation chamber 42 to'the flushing chamber 19. It isto be understood that the port 44 is made in different diameters ofaccurate dimensions, and that the various water jets are utilized withdifferent automatic flushing systems in accordance with the flow'ofwater desired. I1

The manner of operation and functioning of the water jet issubstantially as follows.

The inlet of water through the pipe 28 is regulated manually by thevalve 29. This valve however, need not be so accurately adjusted aswhenno regulator isused; The water discharged from the valve being underpressure, shifts the ball .41 on its seat and causes this ball more orless to be agitated or bounce on the valve seat in the agitationchamber. The agitation chamber is always fullof water as the port 44 isof insufiicient diameter to flow the water out as fast as it passesthrough thebore 39. Therefore, on account of the substantiallycontinuous movement of the ball 41, any sediment is maintained ag tatedand marine growths are prevented, thus at all times giving a proper flowof water to fill the fiushingchamber 19 in the desired time intervals,and therefore flush the sewer as required. If it is found that thesewerflushes too often, a water jet may be installed having a smaller bore atthe orifice, orif it does not discharge frequently enough, this port 44may be enlarged or a water et sulostltuted with a larger opening. Thusan accurate control may be had of the flow-of water into the flushingsystem.

A characteristic feature of my invention is that the ball forms, ineffect, a ball valve resting on the inclined seat or surface 38 andforming a closure for the bore 39. This ball must be bodily removedbefore liquid can flow into the agitation chamber 42, and such actionofbodily movement of the ball manifestly dislodges any dirt or sedimentfrom theseat adjacent the bore 39. Inaddition, when the ball issubjected to violent movement it rubs and impinges againstthe inside ofthe port 44 thus dislodging any dirt therefrom. and allowing free flowof water; and also any small sediment in the water is maintainedagitated so that it may readily flow out of the discharge port 44.

small jet orifice having an outlet port so small that it, is apt to beclogged by sediment. Therefore the ball rolling around in the agitationchamber dislodges this sediment.

*Another characteristic feature. of my invention is that the partitionhaving the inlet 'bore has a downwardly inclined upper sur- 7 face sothat the ball may; ;readily roll and the incoming flow of water causesthe ball to 'roll'i'on different sides of the central inlet bore.

Various changes maybe made in the printion of the size of thecrosssectional area of the ball, and the said inlet bore being. slightlylarger than-the outlet port an d a closure for the tubular body. 7 I

' 2. water jet comprising in combination, a tubular body having acylindrical inside sur face, a transverse partition at the bottom of thetubular body having'a downwardly and inwardly inclined surfaceterminating in a central small bore, a small orifice through the side ofthe body, said port being minute in comparison with the diameter oftheinside of the tubular body, a large ball resting on the inclinedsurface of the partition, the diameter of the ball being but slightlylessthan that of the inside of the tubular body and a. closure for theupper end of said body;

3. A waterjet, comprising in combination a tubular body having an insidecylindrical surface, a transverse partition having an in wardly anddownwardly inclined uppersurface terminating in a central smallbore,such bore being a small fraction of the diameter of the inside of thetubular body and'there being an outwardly and downwardly inclinedsurface on the lower part of the partition from the bore, smalldischarge port through one side of the tubular body terminating at theoutsidein a cone-shaped orifice, the said port being minute in diametercompared with the diameter of they inside. of the tubular body, a balladapted to rest on the,inclinedsurface of the partition,'said ball beingbut slightly less in diameter than thediamcter of'the .insideof thetubularbody and a closure plug for the top of said tubular'body. Intestimony, whereof Ihave signed. my name to this specification.

, {THOMAS A. crease.

